Allen is dealing with an injury to the ulnar collateral ligament in his right elbow, and while it's not considered a major issue, his MRI has been sent to renowned surgeon Dr. James Andrew for a second opinion, according to Chris Mortensen and Adam Schefter of ESPN.

The rookie was forced from the game late in the third quarter and was replaced by Nathan Peterman, who threw for a touchdown but also helped seal Houston's victory with two interceptions, including a pick-6.

Allen had 80 passing yards and 20 rushing yards before exiting.

The Bills brought in veteran Derek Anderson last week and he may see game action if Allen is forced to sit against Indianapolis.